Zheng only stared at the beautiful box, but lost the really valuable pearl. It can be seen that everything must have priorities, otherwise it will be like the Zheng people who "buy gifts and return pearls" to make stupid things such as giving up the basics and making improper choices.

In modern times, it is also used as a metaphor to spend a little capital to get a higher return, and the seller gets a "pearl" with a rafter.

(1) describes people who are short-sighted and make improper choices.

(2) metaphor has no vision, improper choice. It also satirizes those who don't understand the essence of things, abandon the roots and pursue the end, and abandon the Lord for the second time.